Gauge



March 14, 1933. JACKSON 1,901,451 v GAUGE Filed April 15, 1932 INVENTOR Harry E as k 5 an Patented Mar. 14, 1933 UNITED STATES HARRY G. JACKSON, JENKINTOWN, PENNSYLYAN'IA GAUGE Application filed April 15,

This invention relates to gauges, and has for an object to provide improved means for clamping the gauge head upon the bar.

A further object of the invention is to pro- 'vide in combination with the gauge head a bowed resilient member, the central part of which is clamped against the bar by a clamping member carried by the head.

The invention therefore comprises the usual gauge bar and head, with a resilient member interposed within the opening formed in the head positioned to bear upon one side of the bar, with a screw or like clamping member carried by the head operating upon the bowed resilient member, the ends of said resilient member being inturned to lock the screw organization within the head.

The drawing illustrates an embodiment of the invention and the views therein areas follows:

Figure 1 is a view of the gauge in side elevation including the present invention,

Figure 2 is an end view of the gauge,

Figure 3 is a transverse sectional view through the head taken on line 33 of Figure 2,

Fi ure 4 is a view similar to Figure 3 embodying a slight modification, and

Figure 5 is an end view of the screw organization.

Like characters of reference indicate corresponding parts throughout the several views. I

The present gauge comprises a gauge bar 10 and head 11 of approximately the usual and ordinary type. The ordinary gauge head is provided with a screw which clamps the head upon the bar. The present invention 0 embodies a resilient member 12 which may and preferably will be of metal which is introduced into a groove 13 formed in the head and communicating with the opening 14 which receives the bar 10.

Inserted laterally into the head is a screw 15 having any convenient means for operating as the winged head 16. Preferably, this screw 15 is carried by means of a threaded sleeve 17 which is inserted into the head.

The sleeve 17 is countersunk upon its inner 1932. Serial No. (355,447.

end as at 18 and the screw 15 is upset atthe end as shownflat l), and bears upon the resilien't member 12. "1The sleeve 17 is provided with notches 20 formed in the opposite side a and the extreme ends of the resilient member 12, indicatedas 12, are bent backward'ly upon the intermediate'portion of 12 and introduced into the'notche s 20 as shown more particularly at Figure 3. Thisbending in of the 'ends' 12 into the notches 2O simultaneously looks theresilient member into position and also looks the sleeve 17in position. Preferably, this sleeve 17 will be upset slightly at its outer end as indicated at 21 toimake 'a -more complete and close joint with the ma- 'terial of thehead 11. V v

As a modification, the resilient member will take the form as shown at 22 in Figure 4, and the ends 22 will n-ot'be returned throu'ghthe he slot which includes the bow part of the resil- 9 -ient member, but will be introduced through openings 23 spacedaway from the'slot 13' and *likewise introduced into the cuts 20 in 'the 1 sides of the sleeve 17. The two types are N identical withthe exception of the amplitude of the bowed part of the resilient member and the position longitudinally of the sleeve at dvlvhich the sleeve is engaged by the inturned en s. 1 I

In'operation, the manipulation of the screw 15 operates against the bowed section of the resilient member 12 or 22 to force such bowed section against the bar and to lock the head firmly in connection with the bar at the required adjustment. By the'rever'se movement of the screw, the pressure of the upset head 19 is relieved from the bowed section of the resilient member and by the resiliency the arcuature of the bow is increased in radius, thereby releasing the clamping action upon the bar. By the inturned ends of the resilient mom-- her, the resilient member itself is locked in position and likewise locks in the head the threaded sleeve. By forming the end of the screw 15 as an upset head, the removal of the screw is prevented, whereby no parts may be lost and the clamping of the resilient member upon the bar is of such nature as not to score or scar the bar.

Of course, the gauge herein illustrated may be modified and changed in various Ways without departing from the invention herein set forth and hereinafter claimed.

The invention is hereby claimed as follows:

1. A gauge comprising a bar and a head slidable thereon, said head having a slot adjacent to the bar, a resilient member occupyingthe slot, and a clamping unit positioned to exert pressure upon the resilient member,

said resilient member having ends engaging and locking the clamping unit against withdrawal from said head.

2. A gauge comprisinga bar and a head slidable thereon, said head having a slot alongside the bar, a resilient member located in the slot and having its ends formed as re- I turn bends within the head, and a clamping screw carried by the head positioned to exert clamping stress upon the resilient member,

said screw having an upset inner end defeating withdrawal of the screw. 3. A gauge comprisinga bar and a head slidable thereon, said head having a slot alongside the bar, a threaded sleeve inset into the head and terminating adjacent to the resilient member, the ends of said resilient member being returned within the head and engaging and locking the sleeve against withdrawal from said head,'and a clamping screw carried by the sleeve positioned to exert clamping stress upon-the resilient member.

7 4:. A gauge comprising a bar and a head slidable thereon, said head extending laterally upon all sides of the bar and provided with a slot alongside the bar, a sleeve inserted laterally into the head and communicating with the slot, said sleeve having a countersunk end and notches formed laterally in its sides, a resilient member extended through the slot and having its ends returned within the head 7 and entered into the notches of the sleeve, and a screw introduced into the sleeve. and bearing against the resilient member.

'In testimony whereof I have signed my name to this specification. o

HARRY G. JACKSON. 

